442 HELICIDiE. 



Vertigo Bollesiana. 



Shell cylindrical ovate ; whorls four, sub-convex ; aperture sub-orbicular ; teeth 

 five; minutely perforate. 



Isthmki BoUfsiami, MoRSE, Ann. N. Y. Lye. viii. 209, figs. 4-6 (Nov. 1865). 

 Vertigo Bollesiana, Morse, Am. Nat. i. 669, fi;^s. 63, 64 (1868). 



Fig- V03. Shell minutely perforate, cylindrical-ovate, 



delicately striated, sub-translucent ; apex ob- 

 tuse ; suture wcU-delined ; Avliorls four, sub- 

 convex ; aperture sub-orbicular, somewhat 

 flattened on its outer edge ; with five teeth, 

 one prominent and rather curved on the 

 parietal margin, two similar in form, the 

 lower one the smaller, on the columellar margin, and two slightly 

 elevated lamelliform teeth within and at the Ijase ; peristome sub- 

 reflected and thickened. Length, sixty-five thousandths of an inch; 

 breadth, thirty-five thousandths of an inch. {Blorse.) 

 New Eno-land ; New York ; Virginia. 



Vertigo ovata. 



Fig. 119. 



Shell ovate-conic, amber colored ; whorls five or six, convex, wrinkled ; aper- 

 ture semi-oval, broader than long; teeth five; umbilicus distinct. 



Vertiqo ovala. Say, Journ. Acad. Nat. Sc. ii. 375 (1822); cd. Binney, 26. — Binney, 



Terr. Moll. ii. 334, pi. 71, fig. 4. — W. G. Binney, Terr. Moll. iv. 148. — Morse, 



Am. Nat. i. 668, fig.<. 57, 58 (18G8). 

 Papa ovata, Gould, Bost. Journ. N. II. iv. 350, pi. 16, figs. 7, 8 (1843). — De Kay, 



N. Y. Moll. .50, pi. 4, fig. 50 (1843). — Adams, Vermont Moll. 157 (1842); Sillim. 



Journ. [1] xl. 271. — KuSTER, in Chemn. ed. 2, 118, pi. 14, figs. 1, 2; pi. 15, figs. 



35_38. — Pfeifker, Men. IIcl. Viv. ii. 360; Symb. ii. 54. 

 Pupa modestn. Say, Lon-'s Ex. ii 25. pi. 15, fig. 5 (1824) ; ed. Binney, 32, pi. 74, fig. 5. 



-Gould, Inv. 188, fig. 119 (1841). 

 Pupa ovuhun, PrEiFEEit, olini, Synd). 46. 

 hlhmia ovata, Morse, Journ. Portl. Soc. i. 38, fig. 93 ; pi. 10, fig. 94 (1864). 



Shell minute, ovate-conic, thin, amber colored, whorls five ; some- 

 times six, minutely wrinkled, well-rounded, and defined by a deep 

 suture, gradually diminishing to a rather acute apex ; aperture about 

 half the breadth of the last whorl, slightly oblique ; rather broader 

 than long; semi-oval, but modified by an inflection of the outer lip; 

 lip simple, not reflected, joining the preceding whorl behind, by a 

 curve; teeth five, slender, sharp and direct, like the teeth of a 



